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TokyoTyrantQuery::metaSearch — Retrieve records with multiple queries
$queries
, int $type
)Executes multiple queries on a database and returns matching records. The current object is always the left most object in the search.
queries
Array of TokyoTyrantQuery objects
type
One of the TokyoTyrant::RDBMS_* constants
Returns the matching rows and throws TokyoTyrantException on error
Example #1 TokyoTyrantQuery::metaSearch() example
<?php
/* Connect to a table database */
$tt = new TokyoTyrantTable("localhost", 1979);
/* Add test data */
$tt->put('cherry', array('color' => 'red'));
$tt->put('strawberry', array('color' => 'red'));
$tt->put('apple', array('color' => 'green'));
$tt->put('lemon', array('color' => 'yellow'));
/* First query */
$query = $tt->getQuery();
$query->addCond('color', TokyoTyrant::RDBQC_STREQ, 'red')->setOrder('color', TokyoTyrant::RDBQO_STRASC);
/* Second query */
$query1 = $tt->getQuery();
$query1->addCond('color', TokyoTyrant::RDBQC_STREQ, 'yellow');
/* Get union between the queries */
var_dump($query->metaSearch(array($query1), TokyoTyrant::RDBMS_UNION));
?>
以上例程会输出：
array(3) {
["cherry"]=>
array(1) {
["color"]=>
string(3) "red"
}
["strawberry"]=>
array(1) {
["color"]=>
string(3) "red"
}
["lemon"]=>
array(1) {
["color"]=>
string(6) "yellow"
}
}